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  1. Replies
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    1,214

    Suction too high. Have you checked compressor...

    Suction too high. Have you checked compressor run cap and condenser fan capacitors.

    Sent from my SM-G892A using Tapatalk
  2. Replies
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    628

    Are the TXV bulbs mounted tightly and insulated? ...

    Are the TXV bulbs mounted tightly and insulated?

    Sent from my SM-G892A using Tapatalk
  3. That is actually an extended medium temp...

    That is actually an extended medium temp condensing unit. It is technically rated for freezer use at 10k-15k depending on evaporator saturation temp (10.2k btu at -25f, to 14.9k btu at -10f, at...
  4. What is the compressor amp draw? Sent from my...

    What is the compressor amp draw?

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  5. Replies
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    696

    Have you confirmed the coil sensor is not reading...

    Have you confirmed the coil sensor is not reading warmer than the defrost termination temperature?

    Sent from my SM-G892A using Tapatalk
  6. Replies
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    343

    I used to see the Perlick stats always mounted to...

    I used to see the Perlick stats always mounted to a little clip with a single screw in the middle. The clip squeezes suction line on one end, and the coiled up thermostat capillary on the other end....
  7. Its also very likely due to it being summer time...

    Its also very likely due to it being summer time that the DTC valve to keep compressor cool is continuing to feed some refrigerant from liquid line back into compressor shell, which adds to the short...
  8. Replies
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    469

    An oversized condensing unit (in relation to the...

    An oversized condensing unit (in relation to the evaporator) will run a lower suction pressure / suction saturation temp.

    It will not necessarily overheat compressor. The TXV will meter...
  9. I would pump down unit at receiver to confirm not...

    I would pump down unit at receiver to confirm not overcharged. Assuming it is not, and head pressure doesn't rise more than 25psi during pumpdown, my thought it the compressor is a bit oversized for...
  10. On all Danfoss compressors I have ever seen,...

    On all Danfoss compressors I have ever seen, Common is bottom center pin, Run is top left, Start is top right.

    The advice given about resistance is still true, highest resistance is S to R, lowest...
  11. You cannot calculate the superheat in Celsius and...

    You cannot calculate the superheat in Celsius and then convert that to Farenheit. If you want to calculate it in F, convert the numbers first and subtract.

    -25c = -13f
    -32c = -26f

    So that is...
  12. Replies
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    2,002

    Correct. So right side is termination temp. ...

    Correct. So right side is termination temp. Left side is differential. So fan delay is term temp - diff.

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  13. Replies
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    2,002

    For problem freezers, a lot of guys forget to...

    For problem freezers, a lot of guys forget to check heater elements. Often heaters strapped to underside of coil get loose due to weak or rusted clips. So the heater cannot dissipate its heat into...
  14. Replies
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    2,002

    Truth be told you just want to melt the ice. If...

    Truth be told you just want to melt the ice. If you defrost until the water evaporates and coil is dry, you get massive steam that puts icicles all over ceiling and clogs up fan guards with snow. ...
  15. Replies
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    2,002

    Yes. Looks like a pressure switch. Made by...

    Yes. Looks like a pressure switch. Made by Ranco i believe.

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  16. Replies
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    2,002

    Try a Heatcraft 4267W. Fully adjustable def term...

    Try a Heatcraft 4267W. Fully adjustable def term fan delay.

    Sent from my SM-G892A using Tapatalk
  17. Replies
    21
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    960

    If its TXV with no receiver, I would adjust...

    If its TXV with no receiver, I would adjust charge to about 5 - 8f subcooling with box at temp. Attaching liquid line to suction line and wrapping with foil tape before insulating will help keep the...
  18. Replies
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    4,926

    Piercing valve on the low pressure switch? Dang...

    Piercing valve on the low pressure switch? Dang times are getting hard for that little guy! Could use a fan shroud too but hey, it still works. Pretty impressive.

    Sent from my SM-G892A using...
  19. Replies
    36
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    1,984

    I've rebuilt several. On the self contained...

    I've rebuilt several. On the self contained units, we would get the whole pre-assembled evaporator with fans, tstat, and lineset w/ captube soldered and piped all the way to drier and terminated...
  20. Replies
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    1,984

    Nice Perlick cooler there. I hate how the evap...

    Nice Perlick cooler there. I hate how the evap fins are exposed. And the tstat bulb being mounted on suction line can be a pain. I like to switch to A12-700 in the coil.

    edit / misread

    Sent...
  21. Replies
    14
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    1,425

    All the Cheesecake Factory racks I serviced were...

    All the Cheesecake Factory racks I serviced were Kairak units, parallel rack utilizing 3 scroll compressors with 3 low pressure switches to maintain about 45psi at all units. All the cold rails were...
  22. Replies
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    1,880

    As long as box size hasn't increased and it's...

    As long as box size hasn't increased and it's capable of getting down to temp, you may just need to add a defrost timer. Or upgrade to an electronic thermostat with built-in defrost, like the KE2...
  23. Replies
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    1,374

    Good catch I saw the pressures and assumed R134a...

    Good catch I saw the pressures and assumed R134a

    Sent from my SM-G892A using Tapatalk
  24. Replies
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    1,374

    Not true. Any copeland with CAA electrical code...

    Not true. Any copeland with CAA electrical code has a run cap. And a ton of the new BevAir R290 tiny units running 2.5amps utilize a run capacitor and no start capacitor. I'm talking 3 door Bev...
  25. The Sanhua valves usually work. But we've had...

    The Sanhua valves usually work. But we've had several fail after installation. Usually its some piece of copper burr, or excessive oxidation that prevents a new solenoid from sealing. I've never...
  26. Replies
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    1,374

    25 psi suction too high. Possibly overcharged. ...

    25 psi suction too high. Possibly overcharged. Pull vacuum and weigh in fresh charge and report pressures. Also if compressor has a run capacitor, confirm it is good, condenser is clean, condenser...
  27. Replies
    31
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    2,121

    The problem I have with LP switch for temp...

    The problem I have with LP switch for temp control is that during normal high ambient conditions, suction runs higher. I can dial in for 24f cutout, 38f cut in and maintain 34-38f box temp. But...
  28. Replies
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    2,121

    My vote is KE2 temp+defrost thermostat with pump...

    My vote is KE2 temp+defrost thermostat with pump down solenoid

    Sent from my SM-G892A using Tapatalk
  29. Replies
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    907

    Just worked on a ton of Norlakes! Unfortunately...

    Just worked on a ton of Norlakes! Unfortunately i couldn't find just the lighted rocker switch by itself

    Sent from my SM-G892A using Tapatalk
  30. Replies
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    907

    Looks like a Norlake 132453 Sent from my...

    Looks like a Norlake 132453

    Sent from my SM-G892A using Tapatalk
  31. We've run across quite a few restricted harvest...

    We've run across quite a few restricted harvest valves too. The screen on each Danfoss valve is very fine and they seem to gum up and restrict fairly easily.

    Sent from my SM-G892A using Tapatalk
  32. We retrofit with a 23104901 motor bracket, 9721...

    We retrofit with a 23104901 motor bracket, 9721 fan motor, and 5140c fan blade. You will need 5/16" nuts and washers and you will drill new holes to mount motor bracket.

    You should replace all...
  33. Yeah that harvest is too long. Suction pressure...

    Yeah that harvest is too long. Suction pressure is a little bit low though, usually gets over 80. Your discharge temp at 160f before harvest is good and should have enough heat to harvest. If it...
  34. Also, what are your harvest times? If it is a...

    Also, what are your harvest times? If it is a mechanical issue due to the grid being damaged, I would expect a long harvest every cycle. However a harvest valve sticking should work fine and have...
  35. Are you running higher than normal suction...

    Are you running higher than normal suction pressure during freeze cycle? With 80f evap outlet temps at 8 min in, yeah it sounds like you definitely have a problem.

    /edit i see you are saying...
  36. Replies
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    990

    The manual is probably referring to the newer...

    The manual is probably referring to the newer style prep table. I've serviced 3-4 of those VPT-88. Besides having only a thermostat for the base and no controls for the rail, they also have just...
  37. Replies
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    32,832

    RIP icemeister! All the help you have given so...

    RIP icemeister! All the help you have given so freely to teach myself and anybody who asks has been a huge source of encouragement and passion for me in my career in refrigeration.

    Sent from my...
  38. Replies
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    1,112

    I have seen this issue a few times over the years...

    I have seen this issue a few times over the years with different units utilizing hot gas condensate loops, though I never noticed it being related to one particular model number.

    Obviously...
  39. Replies
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    1,006

    Scotsman most definitely makes Sonic ice. Sent...

    Scotsman most definitely makes Sonic ice.

    Sent from my SM-G892A using Tapatalk
  40. Well yes tap the other system! We gotta know! ...

    Well yes tap the other system! We gotta know! In fact, maybe thats where the big heat load is - maybe other system is not running properly.

    Sent from my SM-G892A using Tapatalk
  41. Where were you measuring such low superheat? At...

    Where were you measuring such low superheat? At compressor? Because the suction line / captube being attached for heat exchange should keep superheat much higher when measured at compressor. I...
  42. On your first post you said bottom of evaporator...

    On your first post you said bottom of evaporator was getting slushy. Have you confirmed box is level and drain pan has enough slope that no puddle of water remains under the evaporator after a...
  43. I think your issue is a glass door freezer being...

    I think your issue is a glass door freezer being located outside in 80+ ambient. Not only is the refrigeration system struggling from the outdoor heat, the heat infiltration into the cabinet is...
  44. The other thing is the manual shows a 20mfd run...

    The other thing is the manual shows a 20mfd run capacitor, which is correct for a 2464z, while the 2446z shows a 15mfd run cap. So I doubt its a typo, that actually jives more with tech support's...
  45. Yeah it seems a bit suspect that those manuals...

    Yeah it seems a bit suspect that those manuals call for a 2464z but they have 2446z. I dunno, call me paranoid.

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  46. Looks like each compressor should have a run...

    Looks like each compressor should have a run capacitor. A failed run cap means compressor runs slower, which equals higher suction and higher than normal amp draw.

    If cap tube has been changed,...
  47. Replies
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    1,831

    8 beep means the compressor protector cube relay...

    8 beep means the compressor protector cube relay didn't close, indicating gear motor failed to start. In my experience the cube relays are usually just bad. Change all cube relays, and descale unit...
  48. Confirm heaters are not energized continuously. ...

    Confirm heaters are not energized continuously. Confirm correct compressor model number.

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  49. Replies
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    2,912

    Looks like a 1256 Kason. Get the optional spring...

    Looks like a 1256 Kason. Get the optional spring assist kits for each hinge, and new door closer as well if its weak.

    Sent from my SM-G892A using Tapatalk
  50. Maybe thermostat wires rubbed through in the...

    Maybe thermostat wires rubbed through in the wall?

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